Device for the suction of foul air from water-closet basins



.Bame 24, 1941. czcc o 2,241,287

DEVICE FOR THE SUCTION OF FOUL AIR FROM WATER-CLOSET BAsINs Filed Aug. 24, 1938 2 Sheets-Sheet l 5; 6e cma June 1941- E. CECCATO 2,4738

DEVICE FOR THE SUCTION OF FOUL AIR FROM WATER-CLOSET BASINS Filed Aug. 24, 1938 2 Sheets-Sheet 2 Patented June 24, 1941 DEVICE FOR THE SUCTION OF FOUL AIR FROM WATER-CLOSET BASINS Ezio Ceccato, Milan, Italy, assignor to Luigi Biancelli, Milan, Italy Application August 24, 1938. Serial No. 226,545 In Italy September 29, 1937 1 Claim.

The object of the present invention is a device for the suction of foul gases from water-closets, in which means are provided for the suction and subsequent carrying oii of foul gases from a water-closet basin or a number thereof, said means being preferably associated with the discharge and wash-down pipes of the closet.

According to the invention, the mechanical means for impressing a discharging motion to the foul gases are of the ejector type. Preferably the operation of said ejecting means uses a dragging water-jet tapped from the main water line.

The invention will be now disclosed with reference to the attached drawings, showing only as examples, in no way limiting the range of the invention, some embodiments of the device.

Fig. l is a diagram of a water-closet basin provided with the device inserted between the washdown pipe and the cavity of the syphon.

Figs. 2 and 3 show respectively, in longitudinal and in cross section, a first embodiment of the invention;

Figs. 4 to 8 show in longitudinal section different alternatives.

With reference to Fig. 1, A is the cover and B the basin of the closet, C the apparatus for driving off the foul gases, E is the wash-down pipe. The apparatus C has its suction opening l connected to the wash-down pipe E.

In the embodiment according to Figs. 2 and 3, 2 is the upper part of the body of the apparatus provided with a fitting i for connection to the wash-down pipe: this upper part i or the body is connected to the lower part 3 carrying a fitting 4 to the discharge pipe F of said foul gases.

According to the invention, the suction of the foul gases in the cavity 5 is caused by a waterjet ejected from 6 and tapped in l to a water line. A cock 8 controls the jet covering or uncovering a canal 9: the cock 8 is provided with a handle 9a so that the user, after having used the closet, may open the cock, closing it after a certain time. The entrance of the water in the cock is tangential, so as to obtain a turbulence effect. Eventually, to avoid the mishap that the user may forget to close the cock, means may be provided to obtain a self-closure or a delayed closure.

In the embodiment according to Fig. 4, the body 20. of the apparatus is substantially in one piece. The conduit Ia carrying the water to the nozzle, to obtain a Giifard effect, is controlled by a cock 8a with a handle 9a associated with a valve l0, controlling the section of the pipe la. Preferably a conical point I I is placed in front of said nozzle 6a to give a conical or substantially hollow shape to the jet, thus improving the action of the ejector.

In the alternative according to Fig. 5, the ejecting nozzle to is associated with a small valve 8b, whose motion, controlled by handle 9b. is interdependent with that of a valve i2 fulcrumed in it, normally closing the inner mouth it of the carry-off conduit F, said valve l2 forming a waterseal. On opening valve 8b, valve i2 is opened in such a way as to allow the operation oi the ejecting means.

Fig. 6 shows an alternative of the type according to Fig. 5. The valve controlling the ejecting nozzle to is made as a male cock to, said cock being associated by means of the linkage it to valve fl3c forming a water seal.

In the embodiment according to Fig. 'l, the ejecting nozzle Ed is solid with the male of the hollow cock id, rotatably mounted in the body 2d and coaxial with the suction mouth id. The wall of cock 801 has an aperture it diametrically opposite to the nozzle which corresponds to the carry-off conduit F when the nozzle corresponds with the conduit id of adduction of the water.

Fig. 8 shows an alternative in the shape according to Fig. 7, wherein the hollow cock to is coaxial to the carry-off conduit F, the nozzle ta being then curved.

It should be understood that other embodiments may be designed according to the principles disclosed above. Besides the device may be planned in more or less partial association with a fiuxometer for the washing away or with means for washing away other patterns of basins. Moreover a single control may be designed for the wash down and for the carry-off of foul gases. In general the details in design and in application may vary in any way. Also the mechanical means for carrying-off and for ejection can be achieved in an apparatus operating simultaneously two or more basins. All this remains within the limits of the invention without exceeding the domain of the patent.

What I claim and desire to secure by United States Letters Patent is:

In water-closets including a basin, a washdown pipe and a discharge pipe for said basin, means in communication with said wash-down pipe and said discharge pipe for carrying off foul gases from said basin through said wash-down pipe, comprising a casing, an inlet leading from said wash-down pipe, an outlet in said casing leading to said discharge pipe, a jet nozzle for creating a suction in said casing, a conduit for the casing, a'oock rotatably mounted into the 5 chamber and carrying the nozzle, the chamber being provided with at least one aperture through which liquid passes from the inlet to the outlet.

and means carried by and operable with the cock I for regulating the passage oi. liquid through the chamber, the cock also acting to control the passage of fluid through the jet, the arrangement being such that when the jet is closed passage of the liquid through the chamber is also prevented.

EZIO CECCATO. 

